Module: workflow_graph

This little module produces graph diagrams out of workflows, useful for documentation purposes. It uses Graphviz for the actual graph generation.

It currently generates two distinct kinds of graphs:

  * One for the workflow definition, showing all workflow states, the transitions linking them, and the roles allowed to perform those transitions.
  * One for a workflow instance history, i.e. the path that a workflow took for a specific node. Here, the graph shows all state transitions that occurred on the node, including the timestamp and the users who performed those transitions.